{"success":true,"version":"v1","request":{"tool":"calculate_crop_factor","calculator_id":"crop-factor","inputs":{"sensor":"full_frame"},"request_id":"req_266a9d4938f14f7ba72a","received_at":"2026-09-24T03:45:03Z"},"result":{"entity_type":"calculation","id":"calc_crop-factor","calculator_id":"crop-factor","calculator_name":"Crop Factor Calculator","category":"photography","status":"completed","values":{"crop_factor":1,"sensor_diagonal_mm":43.27,"sensor_area_mm2":864,"area_ratio_to_full_frame":1,"light_gathering_stops_vs_full_frame":0},"units":{"sensor_diagonal_mm":"mm","sensor_area_mm2":"mm²","light_gathering_stops_vs_full_frame":"stops"},"formula":"crop_factor = √(36² + 24²) / √(width² + height²); equivalent_focal_length_mm = focal_length_mm × crop_factor; equivalent_aperture_f = aperture_f × crop_factor; area_ratio = width × height / 864","notes":[],"summary":"Crop factor: 1; Sensor diagonal: 43.27 mm; Sensor area: 864 mm²; Area relative to full frame: 1; Total light vs full frame: 0 stops"},"warnings":[],"sources":[{"name":"Wikipedia – Crop factor","url":"https://en.wikipedia.org/wiki/Crop_factor","type":"reference","retrieved_at":"2026-09-24"},{"name":"Cambridge in Colour – Digital camera sensor sizes","url":"https://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm","type":"reference","retrieved_at":"2026-09-24"}],"freshness":{"type":"static","max_age_seconds":null,"note":"Deterministic formula with fixed constants; results never go stale. Inputs supplied by the caller determine the output."},"cache":{"hit":false,"cacheable":true,"deterministic":true,"note":"Same inputs always produce the same result; safe to cache indefinitely."},"timestamp":"2026-09-24T03:45:03Z","duration_ms":0,"next_actions":[{"tool":"calculate_field_of_view","calculator_id":"field-of-view","reason":"Actual angle of view for the lens on this sensor.","url":"https://tttkmbb.com/api/v1/calculate/field-of-view","docs":"https://tttkmbb.com/photography/field-of-view.md"},{"tool":"calculate_depth_of_field","calculator_id":"depth-of-field","reason":"Depth of field with the sensor's circle of confusion.","url":"https://tttkmbb.com/api/v1/calculate/depth-of-field","docs":"https://tttkmbb.com/photography/depth-of-field.md"},{"tool":"calculate_hyperfocal_distance","calculator_id":"hyperfocal-distance","reason":"Hyperfocal distance for the same sensor and lens.","url":"https://tttkmbb.com/api/v1/calculate/hyperfocal-distance","docs":"https://tttkmbb.com/photography/hyperfocal-distance.md"}],"links":{"self":"https://tttkmbb.com/api/v1/calculate/crop-factor?sensor=full_frame","html":"https://tttkmbb.com/photography/crop-factor?sensor=full_frame","markdown":"https://tttkmbb.com/photography/crop-factor.md","schema":"https://tttkmbb.com/api/v1/calculators/crop-factor","openapi":"https://tttkmbb.com/openapi.json","mcp":"https://tttkmbb.com/mcp","task":"https://tttkmbb.com/api/v1/tasks/task_eyJjIjoiY3JvcC1mYWN0b3IiLCJpIjp7InNlbnNvciI6ImZ1bGxfZnJhbWUifSwidCI6IjIwMjYtMDktMjRUMDM6NDU6MDNaIn0"}}